Radio for receiving and reproducing information broadcast on the

Details Radio for receiving and reproducing information broadcast on the Radio for receiving and reproducing information broadcast on the

1979-11-23

1980-11-11

Bookbinder, Marc E.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

455 4, 455 70, 455228, 455352, H04B 126

Patent

active

042336856

ABSTRACT:
A superheterodyne radio receiver which is simultaneously tuned to receive both signals selectively tuned within the general AM broadcast spectrum and signals transmitted at the intermediate frequency, as defined in the receiver. The receiver responds to predetermined coded signals on the broadcast intermediate frequency signal to inhibit the local oscillator in preference to subsequent information broadcast on the intermediate frequency.

REFERENCES:
patent: 2429607 (1947-10-01), Capen
patent: 3257617 (1966-06-01), Goldmark et al.
patent: 3639686 (1972-02-01), Walker et al.
patent: 3684823 (1972-08-01), McVoy
patent: 3739283 (1973-06-01), Colligan

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